Composed of alexander s



A. S. SPIEGEL. 7 METHOD AND APPARATUS FOR THE MANUFACTURE OF TWO'COLORED ROOFING.

APPLICATION FILED DEC.2, I9T5.

Patented Aug. 15,1916.

2 SHEETSSHEET l- Patented Aug. 15, 1916.

2 SHEETS-SHEET 2.

fn entan" sheet .and to then deposit grit of another I two grlts.

itial deposit of the grit of one color upon STATES PATENT oEFIoE.

ALEXANDER s. SPIEGEL, OF CHICAGO, ILLINoIs, ASSIGNOR To THE-Emir 0F SPIEGEL PATENT COMPANY, 01 CHICAGO, ILLINOIS, COMPOSED- OF ALEXANDER s. SPIEGEL AND LowELL E. LINDLEY, BOTH or cHIcAGo, ILLINOIS. 1

METHOD AND APPARATUS FOR THE MANUFACTURE OF TWO-COLORED ROOFING.

Specification of Letters Patent. Pa t te d Aug. 15, 1916. I

Application filed December '2, 1915. Serial No. 64,680.

To all whom it may concern:

Be it known that I, ALEXANDER S. SPIEGEL, a citizen of the United States, and resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Methods and Apparatus for the Manufacture of Two-Colored Roofing, of which the following is a specification, and which are illustrated in the accompanying drawings, forming a part thereof.

The invention relates to prepared roofing,

and has for its object to rovide an improved a tile or shingled roof, with single layers of prepared roofing. The low cost of.pro-

ducing an ornamental roof in this way, and

the satisfactory character of the roof covering, have created such a large demand for these two-colored prepared roofings that an improved method and apparatus for their production have been greatly. desired.

It. has been proposed to deposit the grit of one color in straight or curved lines by permitting the grit to flow in separate streams upon the adhesive surface of the moving color over the entire surface of the sheet with the expectation that it will be retained only in those portions of the pattern which are not covered by the first deposit. How? ever, this proposed method is limited'in its application for use only in connection with those designsor patterns wherein one of the 9 colors is extended in continuous lines havin a general direction which is parallel with the length of thesheet, and even in these patternsit has been found impracticableto ob tain the desired confinement'of the grits of the different colors to their respective pertions of'the pattern, or to eifect a satisfactory covering of the entire surface with the,

The present invention contemplates an incertain portions of the adhesive surface of By using grits of contrastingof the parts removed.

as 11, 46 or 47, which is-freshly coated upon the sheet, and a subsequent deposit of the other grit over the entire surface ofthesheet, but both grits are to be provided in quantities sufficiently in excess of those re quired to insure a satisfactory covering and the grit first deposited is to be definitely confined in its application to the precise per-- tions of the surface of the sheet where its adherence isdesired. By this means there is: no intermixture of the two colors, and a complete covering of' the entire surface, in strict accordance with adefinite pattern, is obtained. b In the accompanying drawings, Figure 1 Y is a detail side view of oneform ofapiparatus provided by the invention, some of the partsbeing omitted; Fig. 2- is a front ele vation partly in section, showing a drum or cylinder employed in the apparatus illustrated in Fig. 1, with means for maintaining '7'5' a supply-of the grit of one color within the drum; Fig. 3 -is a plan viewshowing the completed roofing sheet when coated .with two colors of grit, in accordance with' the particular pattern. obtained by the useio fsoj the specific form of apparatus illustrated??- in Fig. 2; Figs. 4 and 5 are similar to' Figs. 7

1 and 2, respectively, but show a different form of the apparatus; Fig. 6 is similar to' Figs. 1 and 4, but'is drawn to. a smaller scale and shows still another form of the japparatu's; and Fig. 7 is-a plan viewer the apparatus illustrated in Fig. 6, witl issome In accordance with 'the-improved method provided-by the invention,- av quantity of the particles of grit of one -eoloriare deposited 'uponi definitely restricted areasor sections,

as-10,.- of the tacky surface of a roofing sheet,

95. one side with a layer-12 of heateda sphalt. Preferably the quantity of particles'of grit gf supplied for this purpose is greatly in-excess of that required to, afford a complete cover ing oftlie tacky surface in the areas or sections 10. A Provisionis accordingly madefor' Z inverting the sheet to permit the surplusto 1 fall by gravity away from thev sheet. I Particles of grit of another color are then supplied overthe entire surface of the-sheet in 1o5 sufiic'ient quantity to insure that the remaining areas or sections, as 13, will becompletely coated with the adhering particles. 1

' The last-mentioned grit is preferably also paratus of the form illustrated in Figs. 1

and 2, the sheet 11, having the freshly ap- .plied coating 12 of heated asphalt, is extended about a drum 14. This drum rotates with the travel of the sheet, as in the r direction indicated by the arrow 15, on Fig. 1. Guide rolls 16, 17, are provided to insure neath a hopper 21, and in an inverted position, as at 22, over an appliance, as the table I sition between the guide rolls 18 and 19,

the engagement of the sheet with the drum 14 throughout a considerable proportion of its circumference. As shown, these guide rolls are so positioned that the sheet 11 e'xtends under the drum 14 and is engaged with bothits descendin and ascending sides, and does not leave the drum until it has extended over the same for a suificient distance to per.- mit particles of grit which are not adhering to the surface of the sheet to fall away from the same byv gravity. Additional guide rolls 18 and 19 serve for the extension of the sheet in an inclined position, as at 20, be-

23," for receiving particles of grit delivered from the hopper 21 in excess of those required to complete the coating.

The drum 14 may be constructed with open ends, as 24. In that event the drum issupported upon rollers, as 25, which engage the same adjacent its opposite ends, and is rotated by the engagement of a pinion (not shown) with an annular set of gear teeth .26 which extend about the drum at one end.

1 through one of its ends.

The confinement of the to definitely restricted areas, as 10, of, the surface of the sheet 11, is obtained by the extension of a flange or rib '29 oVer the ex terior of-the drum to form pockets, as 30. Each of these pockets communicates with the interior of the drum through the liberal its provision of openings, as 31, in that portion of the peripheral wall ofthe drum 14 which constitutes the floor of the pocket. The pockets 30 conform in shape to the pattern desired upon the finished ,sheet.- Those shown'are of diamondshape and serve for V producing the French tile effect shown in Fig.3, where the sections 10 and 13 are coated with grits of different colors.

During the rotation ot the drum14 the contained grit passes'through theopenin'gs 31 and completely fills the corresponding v pocket 30, while the pocket is under the drum, whereas all of the said'material, ex-

grit first deposited portions of the sheet is thereby obtained without waste of the material. Furthermore, the extension 'of the flange or rib 29 entirely about the pocket 30, and the engage-' ment of the edge of this flange with the tacky surface of the sheet, insures that the deposit of the grit upon the surface of the sheet is definitely confined to certain restricted areas or sections. Y The flange or rib 29, which forms the side walls of the pockets 30, may have a sharp edge which makescontact with the asphalt layer 12 of the sheet without greatly depressing its surface.

Grit of a color which preferably contrasts with that of the gritsupplied to the drum 14, is deposited over the entire surface of the sheet as it passes beneath the hopper 21. This grit adheres to the sheetonly in those sections, as 13, which have not been covered a by the grit supplied from the drum 14,the

. excess of the grit last supplied falling from the sheet during its travel in an inverted poand being collected by any suitable appliance, as the table 33.

Figs. 4 and 5 illustrate the use of a drum 32 having its peripheral wall, 38, apertured I inaccordance with the pattern desired upon the finished roofing sheet. As shown, the wall 33., of the drum 32 is entirely cut away, except-gin a series of connected lines or sectionsj34, where the first deposit of grit is to be'made'upon the tacky surface of the sheet. .Thedrum 32 may also be formed with open ends, as 35, in which case'it is conveniently. supported and driven in the same ,manner as the drum 14.; In this instance, however, a quantity of the grit of the color to be first applied to the sheet, as 47 is delivered on" to the exterior of the drum 32- from above, .as by a feed hopper 36. During the rotation of the drum-32, acovering of grit is retained upon the solid portions 34 of the wall of the drum during the travel from the hopper 36, until the grit is'engaged with the tacky surface of the roofing sheet 47. All that partof the grit which is supplied from. the feed hopper 36 and is not retained by the solid portions 34 of the wall of the drum, falls' 'into the interior of the drum and is preferably discharged through its open ends, as 35, as by the provision of inclined chutes 37. This surplus of grit may bereturned to the feed hopper 36 by any convenient means (not shown). .Thelseco'nd colorof grit is supplied from the feed hopper 21 in the same manner as when the drum 14 is f used. I

In the form illustrated in F1 s. 6 and 7,

an endless belt 38 takes the .p ace of the drum 32. This belt is apertured in the same manner, as the wall of the drum 32, its solid portions, as 39, corresponding to those portions or areas of the roofing sheet upon which the first depositof grit is desired. The belt 38 travels over and between a pair of horizontally disposed rollers 40 and ll, and grit is supplied to the same from above, as by a feed hopper 42. That part of the grit which is not retained by the solid portions 39 of the belt falls into a receiver 43. This receiver is preferably located between the upper and lower lengths of the belt 38. The material collected therein is returned to the feed hopper 42 by. any convenient mechanism, not shown. Guide rollers 4A and I5 serve for deflecting the traveling sheet of roofing material, as 46, for its engagement with the belt 38 during its travel downwardly about the roller 41,horizontally between the under sides of the two rollers 40 and 41, and thence upwardly about the side of the roller 40. The second color of grit is supplied from the feed hopper 21 in the manner already described with reference to the two forms ofapparatus illustrated in Figs. -1 and 2, and in Figs. 4 and 5.

Either form of the apparatus illustrated serves for the application of the grit of each color in suflicient quantity to insure a complete covering of the adhesive side of the roofing sheet, as 11, 46 or 47. Furthermore, in either case any excess of the grit first applied is allowed to fall from the sheet, and its intermixture with the grit of the other color is effectually prevented. The two forms of apparatus illustrated in Figs. 4 and 5, and in Figs. 6 and 7, serve for the definite confinement of the grit first deposited to selected portions of the roofing sheet Without modifying the surface of the layer 12 of adhesive material in any manner. I i

I claim as my invent'on,

1. The method of making two-colored grit surfaced prepared roofing which consists in applying grit of one color to different portions comprising a part only of the adhesive face of a sheet of-roofing material in excess of the quantity required to coat the said portions,'permitting the surplus of grit so applied to fall away from the face of the sheet by gravity, and in then applying grit of another color to the entire face of the sheet.

2. The method of making two-colored grit surfaced prepared roofing which consists in depositing grit of one color upon sharply outlined separated areas of the adhesive surface of a sheet of roofing material in excess of the quantity required to coat the said areas, inverting the sheet to remove the surplus of grit so deposited,

turning the sheet and in then depositing grit of another color upon the entire upwardly facing surface of the sheet.

3. In a machine of the kind described, in combination, a horizontally disposed rotary drum having a reticular peripheral wall, means for guiding a strip of roofing material about the drum, said guiding means being so, arranged that the strip is inverted during its engagement with the drum, means for delivering grit surfacing material upon one side of the said peripheral wall of the drum and a second means for delivering grit surfacing material upon the strip of roofing material after leaving the drum.

4. In a machine of the kind described, in combination, a horizontally disposed rotating drum having a reticular peripheral wall, a pair of separated rolls extending over the drum for guiding a strip of roofing material about the sides and underneath the drum, means for delivering grit surfacing material upon the outside of'the said peripheral wall of the drum between the said guide rolls, means within the drum for receiving the grit surfacing material which passes through the openings in the said wall of the drum and means for delivering grit surfacing material upon the said strip of roofing material after leaving the drum.

5. In a machine of the kind described, in combinatioma horizontally disposed reticular endless carrier, a pair of separated rolls adjacent the carrier for guiding a strip of roofing material to make face contact-with the said carrier, means for delivering grit surfacing material upon the said carrier between the said guide rolls and means for delivering grit surfacing material upon the face of the said strip of roofing material after its engagement with the said carrier.

6. In a machine of the kind described, in

combination, a moving plate adapted to surfaced prepared roofing which consists-in depositing grit of one color upon separated areas of the adhesive surface of a sheet of roofing material in excess of the quanti y required to coat the said areas, inverting t e sheet to remove the surplus of grit so deposited, turning the sheet and in then depositing grit of another color upon the entire upwardly facing surface of thesheet.

ALEXANDER S. SPIEGEL. 

